Removing Microplastics from Brine Solution

Brine process water (as the standard brine solution) contaminated with MPs at a level of 3671 ± 174 particles/L was obtained from kimchi manufacturing plants in Gwangju, Korea, to investigate the MP removal effect. MPs in the provided standard brine sample were quantified following the description in Section 2.3. Brine process water (i.e., the standard brine solution used in all processes) was used after continuous stirring to obtain a MP-homogenized standard brine solution. Three types of materials for filtration were examined in this study: i) a glass microfiber filter (Whatman Grade GF 10 glass microfiber filter); ii) an STS filter (20-μm stainless-steel filter mesh, Sintered 316L, Hengko Technology Co., Ltd., China); and iii) an SI filter (20-μm BioTect Ultra ceramic, Doulton Ltd., United Kingdom). For the standard brine samples filtered using each filter, MP precision analysis was performed by recovering the number of filtered MP particles.

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Yoon S., Song H., Dang Y.M, & Ha J.H. (2024). Elimination microplastic particles in brine process water for ensuring the safety of brined cabbage. Heliyon, 10(4), e25984.

Publication 2024

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Variable analysis

independent variables

Filter type: 1) glass microfiber filter, 2) STS filter, 3) SI filter

dependent variables

Number of microplastic (MP) particles recovered after filtration

control variables

Brine process water (standard brine solution) used as the input
Initial MP concentration in the standard brine solution: 3671 ± 174 particles/L

controls

No positive or negative controls were explicitly mentioned in the input.

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